Free DNS Security Check
Evaluate DNSSEC, CAA records, wildcard configuration and common DNS risks.
Strengthen domain protections and reduce spoofing risks.
- DNSSEC & CAA
- Wildcard review
- Cache poisoning risks
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
View results
See security findings with prioritized, actionable recommendations.
What this checker validates
- DNSSEC validation and status
- CAA records limiting certificate issuance
- Wildcard and cache poisoning risks
How to improve DNS security
- Enable DNSSEC at your registrar/host
- Add CAA records for trusted CAs
- Avoid broad wildcards, and review subdomains
Tool-specific questions
Do I need DNSSEC?
What does CAA do?
How do I enable DNSSEC?
Why Choose Barrion?
Real-Time Results
Instant security analysis with detailed reports, giving you an immediate security overview
Comprehensive Checks
Multiple best-practice security checks in a single scan, for broad coverage
Actionable and Effective
Clear recommendations for fixes, helping you improve your security quickly and effectively
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